Tens device



FIG. 1 is a top view of a TENS device;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a side view thereof; and,

FIG. 6 is a back view thereof.

The broken line in the drawings is included for the purpose of illustration portions of the TENS device and forms no part of the claimed design. 

CLAIM The ornamental design for a TENS device, as shown and described. 